Shopware6自定义区块中如何获取当前分类的子分类列表

实现方案 #

要在自定义CMS区块中展示当前分类的子分类，不能仅依赖模板dump()，需通过扩展CMS区块的数据源来主动注入分类数据，具体步骤如下：

1. 创建CMS区块数据处理器 #

编写一个继承AbstractCmsElementResolver的处理器类，负责获取当前分类并查询其子分类：

<?php

namespace YourPlugin\Core\Content\Cms\Resolver;

use Shopware\Core\Content\Cms\Aggregate\CmsSlot\CmsSlotEntity;
use Shopware\Core\Content\Cms\DataResolver\Element\AbstractCmsElementResolver;
use Shopware\Core\Content\Cms\DataResolver\Element\ElementDataCollection;
use Shopware\Core\Content\Cms\DataResolver\ResolverContext\ResolverContext;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Criteria;

class CategoryListElementResolver extends AbstractCmsElementResolver
{
    private $categoryRepository;

    public function __construct(\Shopware\Core\Content\Category\CategoryRepository $categoryRepository)
    {
        $this->categoryRepository = $categoryRepository;
    }

    public function getType(): string
    {
        return 'your-custom-category-block'; // 替换为你的区块类型标识
    }

    public function collect(CmsSlotEntity $slot, ResolverContext $resolverContext): ?ElementDataCollection
    {
        // 从请求中获取当前分类ID
        $categoryId = $resolverContext->getRequest()->get('navigationId');
        if (!$categoryId) {
            return null;
        }

        // 查询当前分类及关联子分类
        $criteria = new Criteria([$categoryId]);
        $criteria->addAssociation('children');
        $category = $this->categoryRepository->search($criteria, $resolverContext->getContext())->first();

        if (!$category) {
            return null;
        }

        // 将数据存入集合
        $data = new ElementDataCollection();
        $data->set('currentCategory', $category);
        $data->set('childCategories', $category->getChildren());

        return $data;
    }

    public function enrich(CmsSlotEntity $slot, ResolverContext $resolverContext, ElementDataCollection $result): void
    {
        $slot->setData($result->all());
    }
}

2. 注册处理器到DI容器 #

在插件的services.xml中添加配置，让Shopware识别该处理器：

<service id="YourPlugin\Core\Content\Cms\Resolver\CategoryListElementResolver">
    <argument type="service" id="category.repository"/>
    <tag name="shopware.cms.data_resolver"/>
</service>

3. 在模板中使用注入的数据 #

现在你的CMS区块模板可以直接调用注入的变量，渲染子分类列表：

{% if currentCategory %}
    <h3>{{ currentCategory.name }}</h3>
    {% if childCategories is not empty %}
        <ul class="category-children">
            {% for category in childCategories %}
                <li>
                    <a href="{{ path('frontend.navigation.page', { navigationId: category.id }) }}">
                        {{ category.name }}
                    </a>
                </li>
            {% endfor %}
        </ul>
    {% endif %}
{% endif %}

关键说明 #

• 列表页CMS区块默认数据源不包含分类数据，必须通过自定义处理器主动注入
• navigationId是Shopware列表页请求中携带的分类ID参数，通过ResolverContext获取最可靠
• 查询分类时需添加children关联，才能直接获取子分类数据

内容的提问来源于stack exchange，提问作者Mirko Benini